Broadcom ethernet and wifi gone

[oldcity13]

Dell 9400 80GB HDD 2 GB ram 32 bit Linux Mint 18.2 Sonya.
Ethernet and wifi quit following recent update.
How to recover?
tia
oldcity13

With and without wifi donagle
$ lspci shows:
Ethernet controller: Broadcom Corporation BCM4401-B0 100Base-TX (rev 02)

Network controller: Broadcom Corporation BCM4311 802.11b/g WLAN (rev 01)

Without wifi donagle

$ sudo lshw -C network

[sudo] password for bill:
*-network UNCLAIMED
description: Network controller
product: BCM4311 802.11b/g WLAN
vendor: Broadcom Corporation
physical id: 0
bus info: pci@0000:0c:00.0
version: 01
width: 32 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list
configuration: latency=0
resources: memory:efdfc000-efdfffff
*-network UNCLAIMED
description: Ethernet controller
product: BCM4401-B0 100Base-TX
vendor: Broadcom Corporation
physical id: 0
bus info: pci@0000:03:00.0
version: 02
width: 32 bits
clock: 33MHz
capabilities: pm bus_master cap_list
configuration: latency=64
resources: memory:ef9fe000-ef9fffff


$ inxi -Fx
Network: Card-1: Broadcom BCM4401-B0 100Base-TX bus-ID: 03:00.0
IF: N/A state: N/A speed: N/A duplex: N/A mac: N/A
Card-2: Broadcom BCM4311 802.11b/g WLAN bus-ID: 0c:00.0
IF: N/A state: N/A mac: N/A

$ sudo ifconfig eth0 192.168.1.74
SIOCSIFADDR: No such device
eth0: ERROR while getting interface flags: No such device